If you have created Search Categories in your Stock Control module, you can set search values for the sub-class here.
You must create each Search Category in Stock Control > Stock Maintenance > Search Category first. These Search Categories then appear on the Searching tab.
For more information about how to set up search categories, refer to the Stock Control help.
Open: Retail > Merchandise > Merchandise Hierarchy.
Highlight the relevant class and click Add.
The Add New Sub-Class window appears.